客户端主机被阻止 - JavaMail

Question

我无法通过 JavaMail 发送邮件 API 这是代码：

package my.eliank.lgg.robots;

import java.time.LocalDateTime;
import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import my.eliank.lgg.MainFrame;

    public class MailBot {

        private String sender;
        private String host;
        private Properties properties;
        private Session session;

        public MailBot() {
            sender = "no-reply@baguette.ga";
            host = "mx1.freehostingnoads.net";
            properties = System.getProperties();
            properties.setProperty("mail.smtp.host", host);
            properties.setProperty("mail.smtp.port", "2525");
            properties.setProperty("mail.smtp.user", "user");
            properties.setProperty("mail.smtp.password", "password");
            session = Session.getDefaultInstance(properties);
        }

        public void sendMail(String recipient) {
            try {
                MimeMessage message = new MimeMessage(session);
                message.setFrom(new InternetAddress(sender));
                message.addRecipient(Message.RecipientType.TO, new InternetAddress(recipient));
                message.setSubject("Lotto numbers generation @" + LocalDateTime.now().toString().substring(0, 10));
                message.setText(MainFrame.textAreaOutput.getText());

                Transport.send(message);
                System.out.println("Message was successfully sent");
            } catch (MessagingException e) {
                e.printStackTrace();
            }
        }

    }

问题是每当我尝试通过主机发送邮件时我得到这个例外：

    javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
    com.sun.mail.smtp.SMTPAddressFailedException: 554 5.7.1 Service unavailable; Client host [79.177.150.73] blocked using zen.spamhaus.org; http://www.spamhaus.org/query/bl?ip=79.177.150.73

    at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1873)
    at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1120)
    at javax.mail.Transport.send0(Transport.java:195)
    at javax.mail.Transport.send(Transport.java:124)
    at my.eliank.lgg.robots.MailBot.sendMail(MailBot.java:41)
    at my.eliank.lgg.MainFrame.actionPerformed(MainFrame.java:108)
    at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
    at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
    at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
    at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
    at java.awt.Component.processMouseEvent(Unknown Source)
    at javax.swing.JComponent.processMouseEvent(Unknown Source)
    at java.awt.Component.processEvent(Unknown Source)
    at java.awt.Container.processEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
    at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Window.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access0(Unknown Source)
    at java.awt.EventQueue.run(Unknown Source)
    at java.awt.EventQueue.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain.doIntersectionPrivilege(Unknown Source)
    at java.security.ProtectionDomain.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.run(Unknown Source)
    at java.awt.EventQueue.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)

这个 spamhaus IP 块是什么意思，我该如何删除它？我正尝试通过我的主机在 http://www.freewebhostingnoads.net 发送邮件，为什么我总是被阻止？

Answer 1

有人使用您的 IP 地址，可能是您的网络托管服务上该 IP 地址的先前用户，据信正在发送垃圾邮件。按照错误消息中的链接进行操作，它会告诉您该怎么做。如果您使用的是动态 IP 地址，则可能需要切换到静态 IP 地址。

客户端主机被阻止 - JavaMail

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